35 SERIES GAS FRYERS
CHAPTER 6: OPERATOR TROUBLESHOOTING
6-2
Problem Probable Cause Corrective Action
A. Loose, dirty or corroded terminals on gas
valve.
A. Clean and tighten terminals on gas valve.
B. Loose, dirty or corroded terminals on
thermostat
B. Clean and tighten terminals on thermostat.
C. High resistance in contacts of thermostat. C. Replace thermostat. Call for service.
D. Thermostat out of calibration. D. Calibrate thermostat. See Service Procedures.
E. Automatic gas valve defective. E. Replace automatic gas valve.
Main burner will not
come on; pilot
remains lit.
F. Automatic gas valve knob turned to pilot
position.
F. Turn gas valve knob to ON position.
A. Burner flame deflector broken off. A. Install new burner flame deflector.
B. Burner gas pressure too high or too low. B. Adjust gas pressure. Natural: 4.0 in. W.C.
(0.99kPa); LP: 10.0 in W.C. (2.49kPa).
C. One or more main burner orifices clogged C. Clean burner orifices and blow out with
compressed air.
D. Fryer flue connected directly to vent hood with
a chimney-like duct.
D. Remove chimney-like duct and allow for at
least 18 inches (45.7 cm) between flue outlet
and vent hood filters.
Main burner does not
light all the way
around.
E. Blocked flue E. Clear blockage from flue.
A. One or more burner flame deflectors broken. A. Install new burner flame deflectors.
B. Pilot flame low — less than 1 inch (25mm) B. Adjust pilot flame to 1 ½ in (38mm).
C. Pilot flame directed away from first orifice on
burner.
C. Reposition pilot hood to direct flame toward first
burner orifice.
D. Fryer incoming gas pressure too low. D. Have local gas company raise incoming gas to
the proper pressure.
E. Fryer’s incoming gas line too small. E. Replace incoming gas line with proper size.
Delayed ignition of
main burner
F. One or more burner orifice clogged. F. Clean burner orifices with proper orifice drill.
A. Flue obstructed. A. Clean obstruction from flue.
Flame rolling out
under fryer.
B. Too little make-up airs in kitchen. B. Increase make-up air.
A. Gas valve pilot magnet too weak. A. Replace gas valve.
B. Pilot generator has low millivolt output. B. Replace pilot generator
C. Hi-limit thermostat stuck open. C. Replace hi-limit thermostat.
Pilot light remains lit
when gas valve is
pushed in, but goes
out when released.
D. Loose, dirty or corroded hi-limit wires. D. Clean/tighten hi-limit wires on gas valve.
6.2 Basket Lift Installation, Operation, and Troubleshooting
Installation Instructions
The basket hanger assemblies are shipped in the down position. Before starting your fryer, install the
basket rest arms. Turn the basket lift timer to 0; basket lift rods will come up automatically when
unit is plugged into electrical outlet.